Foundation treatment structure of soft soil foundation

Abstract

The utility model relates to the technical field of soft soil foundation treatment, in particular to a soft soil foundation treatment structure which comprises a first pipe pile and a second pipe pile. The top of the first pipe pile is sealed and connected with a vacuum pump through an exhaust pipe, the lower portion of the first pipe pile is made of a permeable material, and a heating assembly is arranged in the first pipe pile. The multiple second pipe piles are arranged on the outer side of the first pipe pile in a surrounding mode, the tops of the second pipe piles are sealed and connected with a high-pressure pump through air inlet pipes, and the lower portions of the second pipe piles are made of permeable materials. High-pressure gas is injected into the second pipe pile through the high-pressure pump, the first pipe pile is pumped through the vacuum pump, and water in a soft soil foundation around the second pipe pile can be extruded through the high-pressure gas to be conveyed to the periphery of the first pipe pile, so that the water is quickly gathered in the first pipe pile; and the gas is heated and evaporated, so that moisture is quickly discharged out of the first pipe pile.

Description

Technical Field

[0001] This utility model relates to the field of soft soil foundation treatment technology, and more specifically, to a soft soil foundation treatment structure. Background Technology

[0002] If the foundation is not solid enough before construction, it needs to be treated to prevent instability and other accidents caused by foundation settlement and cracking after construction. This treatment aims to solidify the soft soil foundation and improve its consolidation and stability to meet design requirements. Current methods for draining soft soil foundations using drainage consolidation involve injecting high-pressure gas into pipe piles using a high-pressure pump, and then using a vacuum pump to extract gas from another pipe pile. The high-pressure gas is supposed to compress moisture in the soft soil around the first pile and transport it to the other pile. However, because the high-pressure gas is relatively low in temperature, it cannot evaporate the moisture in the soft soil upon contact, making it difficult for the moisture to be transported with the high-pressure gas flow, resulting in low drainage efficiency.

[0003] Utility model patent CN222362468U discloses a foundation treatment device for soft soil foundations. By energizing a heating pipe, high-pressure gas delivered into a cavity is heated. This allows the high-temperature, high-pressure gas exiting from the connecting pile to heat the moisture in the soft soil foundation. The moisture evaporates and is easily transported with the flow of the high-pressure gas, thus improving the device's drainage efficiency. Furthermore, as the moisture in the soft soil foundation gradually decreases, it gradually condenses upon contact with the high-temperature gas. However, a drawback is that the temperature of the heated gas decreases during the process of carrying moisture into the soft soil foundation, easily causing the evaporated moisture to condense again, hindering its transport. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a soft soil foundation treatment structure that can solve the aforementioned problems.

[0005] A soft soil foundation treatment structure includes a first pipe pile and second pipe piles. The top of the first pipe pile is sealed and connected to a vacuum pump via an air extraction pipe. The lower part of the first pipe pile is made of permeable material, and a heating component is installed inside the first pipe pile. A plurality of second pipe piles are arranged around the outside of the first pipe pile. The top of the second pipe piles is sealed and connected to a high-pressure pump via an air inlet pipe. The lower part of the second pipe piles is made of permeable material.

[0006] Furthermore, the first pipe pile includes a first upper pile body, a first lower pile body fixedly disposed at the lower end of the first upper pile body, and a first pile head disposed at the lower end of the first lower pile body. The upper end of the first upper pile body is sealed and a partition is provided inside. The air extraction pipe extends through the top of the first upper pile body and the partition to the body of the first lower pile body. The first lower pile body is made of permeable material, and the first pile head has a conical structure.

[0007] Furthermore, the heating assembly includes a heating rod, an adapter, a first electrode, and a second electrode. The heating rod is disposed within the first lower pile body and extends to the top of the partition plate. The adapter is disposed at the upper end of the heating rod and extends upward to the outside of the top of the first upper pile body. The first electrode and the second electrode are both disposed at the top of the adapter.

[0008] Furthermore, the heating assembly also includes heat dissipation fins, with multiple heat dissipation fins evenly spaced on the outside of the heating rod.

[0009] Furthermore, the second pipe pile includes a second upper pile body, a second lower pile body fixedly disposed at the lower end of the second upper pile body, and a second pile head disposed at the lower end of the second lower pile body. The upper end of the second upper pile body is sealed, and the air inlet pipe extends through the top of the second upper pile body into the body of the second upper pile body. The second lower pile body is made of permeable material, and the second pile head has a conical structure.

[0010] Furthermore, it also includes an intake manifold, which is arranged in a ring around the outside of the plurality of second pipe piles. The end of the intake pipe away from the second pipe pile is connected to the intake manifold, and the intake manifold is connected to a high-pressure pump.

[0011] Furthermore, it also includes a connecting mechanism, which includes a connecting ring, a first mounting ring, and a second mounting ring. The connecting ring is disposed between the first pipe pile and the second pipe pile. The first mounting ring is fixedly sleeved on the outer side of the top of the first pipe pile and located inside the connecting ring. A plurality of first connecting rods are disposed between the first mounting ring and the connecting ring. The second mounting ring is fixedly sleeved on the outer side of the second pipe pile. A second connecting rod is disposed between the second mounting ring and the connecting ring.

[0012] Furthermore, the first connecting rod includes a rod body, a first sleeve, and a first stud. The first sleeve is telescopically sleeved on both ends of the rod body and screwed to the rod body. The first stud is disposed at the end of the first sleeve away from the rod body and screwed to the first sleeve. The two first studs are respectively fixedly connected to the first mounting ring and the connecting ring.

[0013] Furthermore, the second pipe pile is close to the connecting ring, and the second connecting rod includes a second sleeve and a second stud. The two second studs are respectively telescopically disposed at both ends of the second sleeve, and the second studs are screwed to the second sleeve. The two second studs are respectively fixedly connected to the second mounting ring and the connecting ring.

[0014] Furthermore, nuts are fixedly fitted on the outer sides of both the first and second sleeves.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this utility model, the soft soil foundation treatment structure includes a first pipe pile connected to a vacuum pump via an extraction pipe, and a heating component installed inside the first pipe pile. Second pipe piles are connected to a high-pressure pump via an inlet pipe, and multiple second pipe piles surround the first pipe pile. High-pressure gas is injected into the second pipe piles via the high-pressure pump, while the first pipe piles are evacuated by the vacuum pump. The high-pressure gas compresses and transports moisture from the soft soil foundation surrounding the second pipe piles towards the first pipe pile, causing it to accumulate rapidly inside. The heating component inside the first pipe pile heats and evaporates the gas, allowing the moisture to be quickly expelled from the first pipe pile. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the soft soil foundation treatment structure in this embodiment of the utility model.

[0019] Figure 2 This is a cross-sectional view of the first pipe pile in this embodiment of the present invention.

[0020] Figure 3 This is a cross-sectional view of the second pipe pile in an embodiment of this utility model.

[0021] Figure 4 This is a schematic diagram of the connecting mechanism in an embodiment of the present utility model.

[0022] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0023] Figure 6 yes Figure 4 Enlarged view of section B in the middle.

[0024] In the diagram: 1. First pipe pile; 101. First upper pile body; 102. First lower pile body; 103. First pile head; 104. Baffle plate; 2. Air extraction pipe; 3. Vacuum pump; 4. Second pipe pile; 401. Second upper pile body; 402. Second lower pile body; 403. Second pile head; 5. Air inlet pipe; 6. High-pressure pump; 7. Heating rod; 8. Adapter; 9. First electrode; 10. Second electrode; 11. Heat dissipation fins; 12. Main air inlet pipe; 13. Connecting ring; 14. First mounting ring; 15. Second mounting ring; 16. First connecting rod; 1601. Rod body; 1602. First sleeve; 1603. First stud; 17. Second connecting rod; 1701. Second sleeve; 1702. Second stud; 18. Nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 As shown, the soft soil foundation treatment structure in this embodiment includes a first pipe pile 1, second pipe piles 4, and a connecting structure. The top of the first pipe pile 1 is sealed and connected to a vacuum pump 3 via an air extraction pipe 2. The lower part of the first pipe pile 1 is made of permeable material, and a heating component is installed inside the first pipe pile 1. Multiple second pipe piles 4 are arranged around the outside of the first pipe pile 1. The top of the second pipe pile 4 is sealed and connected to a high-pressure pump 6 via an air inlet pipe 5. The lower part of the second pipe pile 4 is made of permeable material. The connecting structure is used to connect the first pipe pile 1 and the second pipe piles 4.

[0027] In this embodiment, as Figure 2 As shown, the first pipe pile 1 includes a first upper pile body 101, a first lower pile body 102, and a first pile head 103. The upper end of the first upper pile body 101 is sealed and a partition 104 is provided inside. The first lower pile body 102 is fixedly installed at the lower end of the first upper pile body 101. The first lower pile body 102 is made of permeable material. The first pile head 103 is fixed at the lower end of the first lower pile body 102 and has a conical structure. The air extraction pipe 2 passes through the top of the first upper pile body 101 and the partition 104 and extends into the first lower pile body 102.

[0028] In this embodiment, the heating assembly includes a heating rod 7, an adapter 8, a first electrode 9, and a second electrode 10. The heating rod 7 is disposed inside the first lower pile body 102 and extends to the top of the partition 104. The partition 104 is made of a high-temperature resistant material. The adapter 8 is disposed at the upper end of the heating rod 7 and extends upward to the outside of the top of the first upper pile body 101. The first electrode 9 and the second electrode 10 are both disposed at the top of the adapter 8 and are connected to an external power source through the first electrode 9 and the second electrode 10.

[0029] Preferably, the heating assembly further includes heat dissipation fins 11, the heating rod 7 is vertically disposed inside the first lower pile body 102, and multiple heat dissipation fins 11 are equally spaced on the outside of the heating rod 7. By setting the heating fins, heat can be dissipated quickly to heat the gas inside the first pipe pile 1.

[0030] In this embodiment, as Figure 3 As shown, the second pipe pile 4 includes a second upper pile body 401, a second lower pile body 402, and a second pile head 403. The upper end of the second upper pile body 401 is sealed. The second lower pile body 402 is fixedly installed at the lower end of the second upper pile body 401. The second lower pile body 402 is made of permeable material and is located in a soft soil foundation. The second pile head 403 is fixedly installed at the lower end of the second lower pile body 402 and has a conical structure. An air inlet pipe 5 extends through the top of the second upper pile body 401 and into the second upper pile body 401.

[0031] Preferably, the multiple second piles are arranged in a ring array, and an air intake manifold 12 is provided on the outer side of the top of the multiple second piles. The air intake manifold 12 is arranged in a ring. The end of the air intake pipe 5 away from the second pile 4 is connected to the air intake manifold 12. The air intake manifold 12 is connected to a high-pressure pump 6, and high-pressure gas is delivered to the multiple second piles 4 through a high-pressure pump 6.

[0032] The soft soil foundation treatment structure in this embodiment also includes a connecting mechanism, such as... Figure 4 As shown, the connecting mechanism includes a connecting ring 13, a first mounting ring 14, and a second mounting ring 15. The connecting ring 13 is disposed between the first pipe pile 1 and the second pipe pile 4. The first mounting ring 14 is fixedly sleeved on the outer top of the first pipe pile 1 and located inside the connecting ring 13. A plurality of first connecting rods 16 are disposed between the first mounting ring 14 and the connecting ring 13. The second mounting ring 15 is fixedly sleeved on the outer side of the second pipe pile 4. A second connecting rod 17 is disposed between the second mounting ring 15 and the connecting ring 13. The first pipe pile 1 and the second pipe pile 4 are connected by the connecting mechanism.

[0033] In this embodiment, combined with Figure 4 and Figure 5As shown, the first connecting rod 16 includes a rod body 1601, a first sleeve 1602, and a first stud 1603. The first sleeve 1602 is telescopically sleeved on both ends of the rod body 1601 and screwed to the rod body 1601. The first stud 1603 is located at the end of the first sleeve 1602 away from the rod body 1601 and screwed to the first sleeve 1602. The two first studs 1603 are respectively fixedly connected to the first mounting ring 14 and the connecting ring 13. Figure 6 As shown, the second pipe pile 4 is located near the connecting ring 13. The second connecting rod 17 includes a second sleeve 1701 and two second studs 1702. The two second studs 1702 are telescopically disposed at both ends of the second sleeve 1701 and are screwed to the second sleeve 1701. The two second studs 1702 are fixedly connected to the second mounting ring 15 and the connecting ring 13, respectively. Nuts 18 are fixedly fitted on the outer sides of both the first sleeve 1602 and the second sleeve 1701.

[0034] The structure of the first connecting rod 16 and the second connecting rod 17 in this embodiment allows for detachable connection between the first pipe pile 1 and the connecting structure, as well as between the second pipe pile 4 and the connecting structure, thus facilitating installation.

[0035] The working principle of the soft soil foundation treatment structure in this embodiment is as follows:

[0036] The first pipe pile 1 is connected to the vacuum pump 3 via the extraction pipe 2, and a heating component is installed inside the first pipe pile 1. The second pipe pile 4 is connected to the high-pressure pump 6 via the air inlet pipe 5, and multiple second pipe piles 4 are arranged around the outside of the first pipe pile 1. High-pressure gas is injected into the second pipe pile 4 by the high-pressure pump 6, and the vacuum pump 3 extracts air from the first pipe pile 1. The high-pressure gas can squeeze the water in the soft soil foundation around the second pipe pile 4 and transport it to the area around the first pipe pile 1, thereby quickly accumulating inside the first pipe pile 1. By installing the heating component inside the first pipe pile 1, the gas is heated and evaporated, thereby quickly expelling the water from the first pipe pile 1.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A foundation treatment structure for soft soil, characterized in that, include: The first pipe pile (1) has a sealed top and is connected to a vacuum pump (3) via an air extraction pipe (2). The lower part of the first pipe pile (1) is made of permeable material. A heating component is installed inside the first pipe pile (1). Second pipe pile (4), a plurality of second pipe piles (4) are arranged around the outside of the first pipe pile (1), the top of the second pipe pile (4) is sealed and connected to a high pressure pump (6) through an air inlet pipe (5), and the lower part of the second pipe pile (4) is made of permeable material.

2. The soft soil foundation treatment structure according to claim 1, characterized in that, The first pipe pile (1) includes a first upper pile body (101), a first lower pile body (102) fixedly disposed at the lower end of the first upper pile body (101), and a first pile head (103) disposed at the lower end of the first lower pile body (102). The upper end of the first upper pile body (101) is sealed and a partition (104) is provided inside. The air extraction pipe (2) extends through the top of the first upper pile body (101) and the partition (104) into the first lower pile body (102). The first lower pile body (102) is made of permeable material, and the first pile head (103) has a conical structure.

3. The soft soil foundation treatment structure according to claim 2, characterized in that, The heating assembly includes a heating rod (7), an adapter (8), a first electrode (9), and a second electrode (10). The heating rod (7) is disposed inside the first lower pile body (102) and extends to the top of the partition plate (104). The adapter (8) is disposed at the upper end of the heating rod (7) and extends upward to the outside of the top of the first upper pile body (101). The first electrode (9) and the second electrode (10) are both disposed at the top of the adapter (8).

4. The soft soil foundation treatment structure according to claim 3, characterized in that, The heating assembly also includes heat dissipation fins (11), and a plurality of heat dissipation fins (11) are equally spaced on the outside of the heating rod (7).

5. The soft soil foundation treatment structure according to claim 4, characterized in that, The second pipe pile (4) includes a second upper pile body (401), a second lower pile body (402) fixedly disposed at the lower end of the second upper pile body (401), and a second pile head (403) disposed at the lower end of the second lower pile body (402). The upper end of the second upper pile body (401) is sealed. The air inlet pipe (5) extends through the top of the second upper pile body (401) and into the second upper pile body (401). The second lower pile body (402) is made of permeable material. The second pile head (403) has a conical structure.

6. The soft soil foundation treatment structure according to claim 5, characterized in that, It also includes an intake manifold (12), which is arranged in a ring outside the plurality of second pipe piles (4). The end of the intake pipe (5) away from the second pipe pile (4) is connected to the intake manifold (12), and the intake manifold (12) is connected to the high-pressure pump (6).

7. The soft soil foundation treatment structure according to claim 6, characterized in that, It also includes a connecting mechanism, which includes a connecting ring (13), a first mounting ring (14) and a second mounting ring (15). The connecting ring (13) is disposed between the first pipe pile (1) and the second pipe pile (4). The first mounting ring (14) is fixedly sleeved on the outer side of the top of the first pipe pile (1) and located inside the connecting ring (13). A plurality of first connecting rods (16) are disposed between the first mounting ring (14) and the connecting ring (13). The second mounting ring (15) is fixedly sleeved on the outer side of the second pipe pile (4). A second connecting rod (17) is disposed between the second mounting ring (15) and the connecting ring (13).

8. The soft soil foundation treatment structure according to claim 7, characterized in that, The first connecting rod (16) includes a rod body (1601), a first sleeve (1602) and a first stud (1603). The first sleeve (1602) is telescopically sleeved on both ends of the rod body (1601) and screwed to the rod body (1601). The first stud (1603) is disposed at the end of the first sleeve (1602) away from the rod body (1601) and screwed to the first sleeve (1602). The two first studs (1603) are respectively fixedly connected to the first mounting ring (14) and the connecting ring (13).

9. The soft soil foundation treatment structure according to claim 8, characterized in that, The second pipe pile (4) is close to the connecting ring (13). The second connecting rod (17) includes a second sleeve (1701) and a second stud (1702). The two second studs (1702) are respectively telescopically arranged at both ends of the second sleeve (1701), and the second studs (1702) are screwed to the second sleeve (1701). The two second studs (1702) are respectively fixedly connected to the second mounting ring (15) and the connecting ring (13).

10. The soft soil foundation treatment structure according to claim 9, characterized in that, Nuts (18) are fixedly fitted on the outer sides of both the first sleeve (1602) and the second sleeve (1701).

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